Keystones — Lintel
Five GCSE retrieval questions · 29 December 2021 · mathsvault.uk/keystones
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1. Number Converting to standard form
15000
Answer: 1.5 × 104 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 30
Answer: (x + 6)(x - 5) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 15cm, angle = 49°. Find opposite
Answer: 17.3cm -
4. Ratio Mixed ratio problems
£328.00 is shared between A and B in the ratio 5:3. How much does A receive?
Answer: £205.00 -
5. Statistics Mean
Calculate the mean of: 19, 29, 44, 25, 37, 23, 25, 33
Answer: 29.4